AP03 Double Flange Bottom Roller for VIO-35-5 VIO-35-6-A 172441-37302 172B03-37300 172441-37302 OE Number 172441-37302, 772450-37300, 772441-37301, 172B03-37300 Will Fit for Following Models For Excavator(s) B27, B27-2, B27-2B, B37-2B, VIO-25, VIO-25-6-A, VIO-27-2, VIO-27-3, VIO-27-5, VIO-30-2, VIO-35-2, VIO-35-3, VIO-35-5, VIO-35-6-A Package Contents 1x Bottom Roller (As Pics Shown) Product Details Double flange bottom roller designed for compatibility with specified excavator models.Constructed to match specifications using the provided OE numbers.Intended for use in undercarriage systems to support track movement and maintain alignment.